Driving mechanism for ore-concentrators.



E. DEISTER.

DRIVING MECHANISM FOR ORE GONGENTRATORS.

APPLIGATION FILED AUG. 1, 1907.

1,101,486, Patented June 23, 1914.

Q WITNESSES: //V l/ENTOR ATTORNEY EMII; DEISTER, 033 FORT WAYNE, INDIANA, ASSIGNOR TO T l-IE DEISTER CONCEN- TBATOR GBMPANY, OF FURT WAYNE, IJBTDIANA, A COBPGRATION OF INDIANA.

BEIVING MECHANISM FOR OEE-CONCENTRATOR$ Specification of Letters Patent.

Patented June 23, 19142..

.ti pplicstion filed August 1, 199?. Serial No. 386,502.

to: eli'ecting cliil erential reciprocating 1110- t'ou of the desired sharpness and character, Without serious weerlng of the frictional of the various parts. The claim :oneontre tors with which this invenintended for use particularly, is that WIllCll is employ d table having a con centrstin sui'fsce'mi' ss ch pulp lows by stir-action of grevit .l ich he applied to it a concentrating motion to drive out of the path of the grevitel iioiv of the pulp the mineral particles that come into contact- With the concentrating surface, and thus separating the mineral from the gengue. The term concentrating motion used herein, is intended. as meaning only such movement will, when applied to'the table drive the heavier constituents of the pulp upon the surface oi the treble out from the path of its gravitsl tlow ,thereover, so that it, thereby becomes separated from the lighter constituents thereof. This object 1s accomplished by construction illustrated in the eccmnpanying drawings, in which:

Figure l 2i side elevation of the we chine, shown partly in sectionyi 'ig. 2 is e elevation of the opposite side from is end. view; Fig. fl is e in perspective showing an ad ust- I able hearing.

Similar numerals of reference indicate correspond g oerts throughout the several views and re erring now to, the some:

i is e frame-costing mounted upon a br e 2 and having opposite hearings 3 and 3 spectively. In the hearing 3 is ed ustsoi y secured e sleeve 4 which has an eccentric cylindrical extension 5. The sleeve 4 has a, central bore 6 which extends through. the

to improvements. in driving mechanism for ore concentrators, c d the ob ect thereof Is to provide means extension eccentric of the letter, and a rotatable shaft 7 extends through the bore ing 3. Upon the shaft 7, between the bear- 3 and 8, is an eccentric 8 which has thereon a. loose roller 9.

Upon the eccentric are two loose pulleys, 10 and 11 respectively, and. upon the extending of the shaft 7, adjacent the outer end of the extension 5, is fixed e box-crank 12. A pin 13 projects from the side of the pulley l0 and has loosely mounted thereon crank es the pulley 10 rotates. The pulley 11 runs idle and carriesthe driving belt when the letter shifted from the driving pulley 10.

A pair of brackets 15 depend from the frame 1 and support e. shaft 16 at their lower ends, and upon said shaft, between the hreelrets is mounted a lever 17 which is angular in form, and has at one end an upright slotted head 18, and at the other end a concave hearing face 19 which bears against the roller 9. A vertically adjustable in the operation of this invention, the drive-wheel 10 is revolved uniformly, in the oirection indicated by the arrow, by belt or otherwise, and the shaft 7 will he roteted differentially because of its connection witligth e driving Wheel 16 and its eccentric relation. therewith. It will appear that the shaft in rotatingthrough a portion of its cycle moves with greater velocity than through the remaining portion, and the eccentric 8 is therefore actuated likewise. During the rotation of the eccentric 8, the roller 9 moves upon the concave face of the lever 17, rolling to and fro, and said lover thereby is oscilleted upon the shaft block .20 is mounted in the slottedhead 18- lever constantly in contact with the roller 9..

6 and rests with one end in the main beara block which slides Within the box- 16 with a di fi'erential movement which is mot-ion, inherent in the roller and lever, is

accelerated during the quickened portion of its cycle by the similar quickened movement of the shaft 7, and the consequent movement imparted to the table is quicker and sharper at the forward end of the stroke and slower and more gentle. at the other, than is obtainable by a single differential mechanism. The two difi'erential mechanisms are used jointly, but are essentially of different character: The roller and lever mechanism that connects the table and shaft generates and imparts to the table a concentrating movement; and the box-crank mechanism that connects the drive-Wheel and shaft, generates and imparts to the shaft a differential rotary movement. The resultant movement imparted to the table is therefore the concentrating movement generated by the one mechanism accentuated by the differential action of the other mechanism. Thus is effected an accentuated concentrating movement.

- Having described my inventionwhat I claim as new and desire to secure by Letters Patent is 1. In anapparatus for the production of differential reciprocating movements a shaft; a differential motion generating mechanism in connection with the shaft to rotate the same differentially; an actuating lever having engagement ith the shaft to bedriven thereby; and means to adjustahly vary the position of the former mechanism relative to the shaft to shift the period of maximum differential movement in the cycle of the shaft.

I differential reciprocation, a frame, an eccentrio shaftjournaled in the frame, a roller concentrically throng" loosely mounted on the shaft, a pivoted lever having a curved face adapted to make contact with the roller, adriving pulley ecccntrically mounted relativel to the axis of the eccentric shaft and having a laterally projecting pin, a crank secured to the shaft, and a sliding block in the crank engaging the pin.

' 4. In an apparatus for the production of differential oscillations a differentially rotated sllaft, a roller carried by the shaft eccentric thereto; a pivoted lever engaging said roller; means to hold the pivoted lever in contact with the roller, a frame casting for the shaft; a sleeve adjustably secured in the frame casting and having an eccentric cylindrical extension, said sleeve affording a bearing for the shaft, a drive Wheel loosely mounted on the extension and means connecting the drive wheel and shaft adapted to rotate the latter diil erei'ltially.

5. In an apparatus for the production of differential reciprocations a frame casting, a sleeve adjustaoly mounted in the frame casting and having-a cylindrical eccentric eX- tension, a shaft mounted ccntrally'in the sleeve and extending through said extension, a drive wheel loosely mounted on said extension, means connecting the drive Wheel and shaft to rotate the latter differentially.

6. In an apparatus for the production of differential reciprocating movements a frame, a sleeve adjustaloly secured. in the frame and having an eccentric extension, a shaft extending concentrically throuqh the sleeve, a drive Wheel mounted upon t e e1 2- tension and adapted to rotate thereon, differential motion generating mechanism in ;rolling connection with the shaft, and a tary differential mechanism in connection with the drive wheel and shaft adapted to actuate the shaft and accentuate the difl'efentiation of the reciprocatin r motion {gen erated by the former mechanism.

i. In an. apparatus for the generation o reciprocating inovenicnts,- a frame, a slew adjustahly secured in the frame and having an eccentric extension, extending l the sleeve, a drive wheel mounte ion the extension of the sleeve andadapted to rotate thereon, a diderential tilt? mechanism in connection with the shaft,an

actuating lever adapt the mechanism, and a i in connection with the c l,

adapted to .tuate the la.

ebe operated by all mechanism eel and shaft 8. in apparatus for the production of differential reciprocation, a frame, a shaft suit ahly ournaled in the frame, a hearing through which the shaft extends eccentrically adiustably secured to the frame, a drive wheel mounted upon the hearing and adapted to rotate thereon, an oscillating lever, a

In testimony whereof I aflix my signature in presence of two witnesses. v

EMIL DEISTER. Witnesses: MATHILDA METTLER; WM. H. BENSMAN.

nnection with the shaft e the lever and a differenmechanism in connection with the drive eel and shaft a ap e to actuate the latng adapted to be shifted period of maximum e shaft.

d t d ary the ential action of th mechanism in 00 adapted to actuat tial Wh 5 ter said bearing bei to adjustably v difi er 

